added comments to cargo.toml

Cargo.toml

@@ -5,9 +5,15 @@ edition = "2021"
 authors = ["Kristof Roomp <[email protected]>"]
 license = "Apache-2.0"
 rust-version = "1.70"
-description = "Rust port of Preflate compression library"
+description = """
+Decompresses existing DEFLATE streams to allow for better compression (eg with ZStandard) while 
+allowing the exact original binary DEFLATE stream to be recreated by detecting the parameters
+used during compression.
+"""
 readme = "README.md"
 repository = "https://github.com/microsoft/preflate-rs"
+categories = ["compression"]
+keywords = ["gzip", "deflate", "zlib", "zip"]
 
 exclude = [
     "samples/*",